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Mitsubishi Outlander GS45X. Manual - part 769

SPECIAL TOOL

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-9

MB991709
Test harness

MB991709-01

Inspection using an
oscilloscope

MB991658
Test harness

Tool not available

• Inspection using an

oscilloscope

• Inspection of heated

oxygen sensor

• Inspection of engine

oil control valve

MD998464
Test harness (4 pin,
square)

MD998464-01

Inspection of heated
oxygen sensor

MB991316
Test harness (4 pin,
square)

Tool not available

Inspection of heated
oxygen sensor

MB992049

MB992049-01

Measurement of fuel
pressure

MB992001
Hose adaptor

Measurement of fuel
pressure

MB991981
Fuel pressure gauge set

Tool not available

Measurement of fuel
pressure

MB992076
Injector test set

Measurement of fuel
pressure

Tool

Tool number and name Supersession

Application

MB991658

MB992049

MB992001

MB991981

MB992076

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-10

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TROUBLESHOOTING STRATEGY

M1131150002348

NOTE: If a DTC is erased, its "freeze frame" data will be also
erased and system readiness test status will be reset. Store the
"freeze frame" data before erasing the DTC.
Use these steps to plan your diagnostic strategy. If you follow
them carefully, you will be sure to have exhausted most of the
possible ways to find an MFI fault.
1. Gather as much information as possible about the complaint

from the customer.

2. Verify that the condition described by the customer exists.
3. Check the vehicle for any MFI Diagnostic Trouble Code

(DTC).

4. If you cannot verify the condition and there are no DTCs, the

malfunction is intermittent. For information on how to cope
with intermittent malfunctions, refer to GROUP 00, How to
Use Troubleshooting/Inspection Service Points

− How to

Cope with Intermittent Malfunctions

P.00-15

5. If you can verify the condition but there are no DTCs, or the

system cannot communicate with the scan tool, refer to the
trouble symptom classification table.

6. If there is a DTC, record the number of the code, then erase

the code from the memory using the scan tool.

7. Reconfirm the malfunction symptom and carry out a test

drive with the drive cycle pattern.

8. If DTC is set again, carry out an inspection with appropriate

diagnostic trouble code procedures.

MD998709

Hose adapter

Measurement of fuel
pressure

MB992042
Engine coolant
temperature sensor
wrench

Removal and installation
of the engine coolant
temperature sensor

MB992106
O-ring installer

Installation of O-ring on
fuel injector injection
nozzle side

Tool

Tool number and name Supersession

Application

MB992042

B992106

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-11

9. If DTC is not set again, the malfunction is intermittent. For

information on how to cope with intermittent malfunctions,
refer to GROUP 00, How to Use Troubleshooting/Inspection
Service Points

− How to Cope with Intermittent Malfunctions

P.00-15

10.After repairs are completed, conduct a road test duplicating

the complaint set conditions to confirm the malfunction has
been corrected.

11.Erase the permanent DTC. (Refer to DIAGNOSTIC

FUNCTION

− PERMANENT DTC for the procedures of

erasing the permanent DTC

P.13B-11

NOTE: This is carried out to prevent the failure to pass the
Inspection and Maintenance (I/M) test in the states checking
whether the permanent DTC is stored or not.

NOTE: If the engine control module (ECM) is replaced, Immo-
bilizer Encrypted Code Registration should be carried out,
Refer to GROUP 42B, Diagnosis

−

ID Codes Registration

Judgment Table <Vehicles with KOS>

P.42B-15

or GROUP

42C, Diagnosis

−

ID Codes Registration Judgment Table

<Vehicles with WCM>

P.42C-10

DIAGNOSTIC FUNCTION

M1131155504593

MALFUNCTION INDICATOR LAMP (SERVICE
ENGINE SOON OR CHECK ENGINE LAMP)

Among the on-board diagnostic items, Malfunction Indicator
Lamp (SERVICE ENGINE SOON or Check Engine Lamp) illu-
minates to notify the driver of an emission control malfunction.
However, when an irregular signal returns to normal and the
engine control module judges that it has returned to normal, the
Malfunction Indicator Lamp (SERVICE ENGINE SOON or
Check Engine Lamp) will switch off.
There are two methods for checking the indicator lamp burn
out: When the ignition switch is in ON position, the indicator
lamp is illuminated, and then extinguished few seconds later.
When the ignition switch is in ON position and the engine
starts, the indicator lamp is extinguished.
NOTE: When the Transmission Control Module (TCM) detects
malfunctions related to the automatic transaxle, the Malfunction
indicator Lamp (SERVICE ENGINE SOON or Check Engine
Lamp) is also illuminated.

AK700324AB

Mulfunction
indicator lamp
(service engine
soon or check
engine lamp)

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-12

Items Indicated by the Malfunction Indicator Lamp

(SERVICE ENGINE SOON or Check Engine Lamp)

DTC

ITEM

P001A

Camshaft profile control (engine oil control valve) circuit

P0031

Heated oxygen sensor heater circuit low (bank 1 sensor 1)

P0032

Heated oxygen sensor heater circuit high (bank 1 sensor 1)

P0037

Heated oxygen sensor heater circuit low (bank 1 sensor 2)

P0038

Heated oxygen sensor heater circuit high (bank 1 sensor 2)

P003C

Mitsubishi innovative valve timing electronic control system (MIVEC) performance problem

P0051

Heated oxygen sensor heater circuit low (bank 2 sensor 1)

P0052

Heated oxygen sensor heater circuit high (bank 2 sensor 1)

P0053

Heated oxygen sensor heater resistance (bank 1 sensor 1)

P0057

Heated oxygen sensor heater circuit low (bank 2 sensor 2)

P0058

Heated oxygen sensor heater circuit high (bank 2 sensor 2)

P0059

Heated oxygen sensor heater resistance (bank 2 sensor 1)

P0068

Mass airflow sensor plausibility

P0069

Abnormal correlation between manifold absolute pressure sensor and barometric pressure
sensor

P0101

Mass airflow circuit range/performance problem

P0102

Mass airflow circuit low input

P0103

Mass airflow circuit high input

P0106

Manifold absolute pressure circuit range/performance problem

P0107

Manifold absolute pressure circuit low input

P0108

Manifold absolute pressure circuit high input

P0111

Intake air temperature circuit range/performance problem

P0112

Intake air temperature circuit low input

P0113

Intake air temperature circuit high input

P0116

Engine coolant temperature circuit range/performance problem

P0117

Engine coolant temperature circuit low input

P0118

Engine coolant temperature circuit high input

P0121

Throttle position sensor (main) plausibility

P0122

Throttle position sensor (main) circuit low input

P0123

Throttle position sensor (main) circuit high input

P0125

Insufficient coolant temperature for closed loop fuel control

P0128

Coolant thermostat (coolant temperature below thermostat regulating temperature)

P0131

Heated oxygen sensor circuit low voltage (bank 1 sensor 1)

P0132

Heated oxygen sensor circuit high voltage (bank 1 sensor 1)

P0133

Heated oxygen sensor circuit slow response (bank 1 sensor 1)

P0134

Heated oxygen sensor circuit no activity detected (bank 1 sensor 1)

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